CN116201364A - Construction method for preventing shear wall steel bars from displacement - Google Patents

Abstract

The invention relates to the technical field of improvement and design of building construction methods, in particular to a construction method for preventing shear wall steel bars from displacement, which comprises the following steps: s1: preparing materials, namely processing the steel bars into standard lengths of longitudinal steel bars and transverse steel bars according to a planning drawing; s2: building a reinforcement cage, and welding the positions of reinforcement joints; s3: installing a locking sleeve at the connection position of the longitudinal steel bars and the transverse steel bars; the locking sleeve comprises a longitudinal locking ring and a transverse locking ring, and the longitudinal locking ring is detachably connected with the transverse locking ring; cavities are respectively formed in the inner walls of the longitudinal locking ring and the transverse locking ring; the cavity of the longitudinal locking ring is internally provided with a first air bag, the cavity of the transverse locking ring is internally provided with a second air bag, working medium and adhesive A are respectively hermetically stored in the first air bag, and working medium and adhesive B are respectively hermetically stored in the second air bag. The displacement of the shear wall steel bars in the pouring process is reduced, and the load resistance of the shear wall is improved.

Description

Construction method for preventing shear wall steel bars from displacement

Technical Field

The invention relates to the technical field of improvement and design of building construction methods, in particular to a construction method for preventing shear wall steel bars from displacement.

Background

The displacement of the shear wall steel bars occurs frequently in construction, the quality of the main structure engineering is affected, and in order to achieve the quality control standard in the construction process, the shear wall steel bars are effectively pre-controlled before displacement occurs, so that the stress performance of the structure is reasonably ensured. According to construction experience, the control and control measures for displacement conditions are analyzed as follows: the steel bar is self-checked after being installed, but project management strength is insufficient or the operation level of workers is limited, and the steel bar is self-checked and accepted after being installed, but displacement occurs due to unreliable measures or measures without fixed steel bars; when concrete is poured, management is not paid attention to, when the concrete of the shear wall and the floor slab at the corresponding position is poured, the horizontal thrust of the concrete causes displacement of small-diameter steel bars, or the steel bars are often required to be pulled and pried due to difficult discharging, and the displacement occurs because the steel bars are not corrected in time after the pouring is completed; improper placement of protective layer spacer blocks may result in shifting of the rebar in the concrete wall. Particularly, when concrete pouring is carried out, the concrete conveying pipe collides with the fixing rib of the shear wall, and the shear wall steel bar on the side of the pump pipe generates displacement under the influence of the concrete conveying pressure due to overlarge force of concrete conveying by the concrete pump.

The invention patent of application number 201910538575.1 discloses a construction method for preventing the displacement of a shear wall reinforcing steel bar, which comprises the following steps: 1. preparing materials; 2. binding a shear wall starting rib; 3. short steel bars are arranged on two sides of the shear wall; 4. pouring concrete: in the process of pouring the concrete of the shear wall, as no horizontal rib of the shear wall exists within the range of 25cm of the root of the shear wall, the vibration rod can conveniently extend into the lower part of the shear wall to vibrate, and the starting rib of the shear wall can not be damaged; 5. restoring the starting rib: and after the strength of the concrete meets the requirement, the starting bar can be taken down and restored to the original position for binding. At this time, the shear wall starting ribs are intact; the hidden column stirrups and the vertical steel bars of the shear wall are kept in situ, and the phenomenon of front-back left-right displacement is obviously reduced.

The technology completes the control of the displacement of the steel bars in the shear wall through the method of assembling and disassembling the steel bars from front to back and finally recovering the starting bars, but the method needs to operate the starting bars of the shear wall for a plurality of times, so that the strength of the starting bars can be influenced, and the compression resistance, the tensile resistance and the load resistance of the starting bars can be reduced. The construction process of the shear wall is mature nowadays, for example:

1. straightening and straightening the reserved steel bars, and cleaning sundries such as surface mortar. Firstly, setting up 2-4 longitudinal steel bars, drawing a longitudinal steel bar grading mark, binding two positioning horizontal bars at the lower part and 1.2 meters, drawing a grading mark on the horizontal bars, binding the rest longitudinal bars, and finally binding the horizontal bars. For example, a hidden beam is arranged in the middle of the shear wall. When the column is hidden, the hidden beam is bound first, and then the surrounding transverse ribs are bound according to the column.

2. The length of each longitudinal steel bar of the shear wall is not more than 4 meters (the diameter of the steel bar is 12 mm) or 6 meters (the diameter of the steel bar is more than 12 mm), and the length of each horizontal section is not more than 8 meters, so that the shear wall is conveniently bound.

3. The steel bar binding firstly corrects a single steel bar, the binding of the whole steel bar framework is completed, the framework is integrally corrected according to the datum line of the member, and meanwhile, a stabilizing measure is adopted to ensure that the framework is firm and does not deform. The process flow of binding the wall steel bars is as follows: trimming reserved lap joint rib, longitudinal rib, transverse rib, tie rib or supporting rib. 4. The wall steel bars are double-layer steel bar meshes, tie bars are pulled and connected between the double-layer steel bar meshes by adopting S-shaped hook tie bars, the tie bars are firmly hooked with the horizontal bars and the vertical bars of the outer skin, double-row bar outer side plastic clamping cushion blocks are arranged in a quincuncial shape, the space 600X600mm is arranged in a quincuncial shape, the key point is a binding method of the steel bars on the outer side of the shear wall, constructors stand on the inner side of the shear wall, the binding wire heads of the steel bars on the outer side are collected on the inner side of the shear wall, and the wall bars are fully bound and cannot be missed.

5. To the position and the reinforcing bar type that easily take place the reinforcing bar displacement when pouring concrete, take the enhancement measure in should the ligature, the horizontal muscle ligature of wall body is higher than 300mm of face department with ladder muscle and trapezoidal muscle supporting rib firm, adopts simultaneously and the firm measure of slab muscle counter-pull lead to prevent to pour behind the concrete wall body muscle aversion and vertical muscle row spacing inequality. After the steel bar is found to be shifted, the steel bar can be bent upwards according to the proportion of 1:6 to be in place, so that the thickness of the protective layer is ensured, and the stress requirement of the structure can be met.

6. After the wall steel bar is bound, the elevation line is put on the hidden post steel bar of the opening, and the thickness of the protective layer is strictly controlled to hang, straighten and align so as to prevent the door and window opening from shifting.

7. Wall and column protection layer control: in order to ensure the thickness of the protective layer of the wall reinforcing steel bars, plastic cushion blocks and limiting clamps are placed on the wall column reinforcing steel bars before the templates are erected, and long wood strips with the thickness of 15mm (25 mm) are bound on the wall and column upper opening reinforcing steel bars so as to ensure the thickness of broken protective layers.

8. After the binding of the plate ribs is finished, the position and the firmness of the reserved constructional column dowel bars need to be carefully checked, and the foundation can be poured at the back correctly. When pouring concrete, a specially assigned person takes charge of taking care of the steel bars so as to ensure that the thickness of the protective layers of the wall and the column and the thickness of the protective layer of the beam are controlled within the intersection range.

9. And protecting the finished product of the steel bar and pouring concrete. After the steel bar is molded and inspected to be qualified, the finished product protection work of the steel bar should be enhanced, a certain number of steel bar workers should be equipped in the concrete pouring process, and the steel bar displaced in the concrete pouring process should be trimmed and reset in time. The work is required to be the primary work for radically curing the displacement of the steel bars and is supervised and completed by field mass operators.

The existing technological process and the existing technology for resisting the displacement of the steel bars of the shear wall are used for treating the displacement of the steel bars in the construction process of the concrete shear wall in advance; after concrete is poured, the concrete needs to be vibrated to prevent cavities from being generated in the shear wall, so that the bearing capacity of the shear wall cannot meet the requirement, when vibration is performed, the prior art is limited in the treatment means of the vibrator on steel bars in a mistaken touch manner, because the traditional mode of binding transverse steel bars and longitudinal steel bars is used for fixing, the standardization cannot be achieved by workers, and when concrete is poured and vibration is performed, strong impact force can possibly cause the broken or loose of bound iron wires, further the deviation of the positions of the steel bars is influenced, and the strength of the formed wall cannot reach the standard; in the prior art, in order to reduce the collision, the space in the shear wall is mostly sacrificed to prevent the collision of concrete pouring or vibration on the steel bars, but the phenomenon may affect the uniform distribution of the steel bars in the shear wall, so that the load resistance of the shear wall is reduced; a technology is needed, so that the displacement of the shear wall steel bars in the pouring process can be reduced and the load resistance of the shear wall can be improved under the condition that the original shear wall steel bar mesh is not changed.

Disclosure of Invention

The invention provides a construction method for preventing the shear wall steel bars from displacement, which can reduce the displacement of the shear wall steel bars in the pouring process and improve the load resistance of the shear wall.

In order to solve the technical problems, the application provides the following technical scheme:

a construction method for preventing shear wall steel bars from displacement comprises the following steps:

s1: preparing materials, namely processing the steel bars into standard lengths of longitudinal steel bars and transverse steel bars according to a planning drawing;

s2: building a reinforcement cage, and welding the positions of reinforcement joints;

s3: installing a locking sleeve at the connection position of the longitudinal steel bars and the transverse steel bars;

s4: building a template and pouring concrete;

s5: extending the vibrating rod into the concrete for vibrating;

s6: maintaining the shear wall and removing the template;

the locking sleeve in the S3 comprises a longitudinal locking ring and a transverse locking ring, wherein the longitudinal locking ring and the transverse locking ring are respectively used for fixing the longitudinal steel bars and the transverse steel bars at the connection positions of the transverse steel bars and the longitudinal steel bars, and the longitudinal locking ring is detachably connected with the transverse locking ring; the inner walls of the longitudinal locking ring and the transverse locking ring are respectively provided with a cavity, and buffer materials are arranged in the cavities; the cavity of the longitudinal locking ring is internally provided with a first air bag, the cavity of the transverse locking ring is internally provided with a second air bag, a plurality of closed cavities are partitioned in the first air bag and the second air bag, working medium and glue A are respectively and hermetically stored in the cavities in the first air bag, working medium and glue B are respectively and hermetically stored in the cavities in the second air bag, the closed cavities filled with the working medium are used for extruding and mixing the glue A and the glue B when being heated, and the boiling point temperature of the working medium is 50-70 ℃.

The basic principle and the beneficial effects of the scheme are that: intercepting the steel bars to a standard length for standby according to a construction drawing, constructing a shear wall steel bar skeleton by the intercepted steel bars, carrying out dislocation welding on the joint positions of the steel bars extending in the same direction, increasing the firmness, installing locking sleeves at the contact positions of the transverse and vertical steel bars, and fixing the transverse and vertical steel bars, wherein the locking sleeves replace a method of fixing the transverse and vertical steel bars by iron wires in the prior art; after the reinforcement framework is built, building templates for concrete pouring around the reinforcement, pouring the concrete into a space surrounded by the templates, curing on time, and removing the templates after cooling and forming to obtain the shear wall.

In this scheme, through the setting of locking cover, the fixing of horizontal and vertical reinforcing bar has been accomplished, the locking cover divide into vertical locking ring and horizontal locking ring, merge two locking rings to the contact position of horizontal reinforcing bar and vertical reinforcing bar, form a cross locking cover, accomplish the fixing of vertical and horizontal reinforcing bar (namely fixing between the horizontal and vertical reinforcing bar), because the locking cover sets up on the reinforcing bar surface, when the force that is born concrete or vibration and transmitted, for the iron wire tie up fixedly, the area of force increases, and horizontal and vertical reinforcing bar is in whole atress, the atress direction is unanimous, the skew direction is unanimous, because horizontal reinforcing bar has the constraint of two direction forces, horizontal reinforcing bar and vertical reinforcing bar are fixed relatively in two directions, when producing the skew, the constraint force of two directions can produce a reaction force, make horizontal and vertical reinforcing bar keep original state, the horizontal and vertical reinforcing bar can not produce when the atress and drop, promptly, horizontal and vertical reinforcing bar can not bear the influence of impact force alone, thereby the probability of producing firm reinforcing bar each other has been reduced.

The concrete placement is accomplished the back and can produce a large amount of heat when hardening, the first gasbag and the second gasbag of setting in the inside cavity of locking cover are heated, working medium in first, the second gasbag cavity is expanded when being heated, can make the cavity at A, B glue place by the break under the volume expansion, make A glue and B glue flow and merge, form the very big AB glue of viscosity, it is fixed to bond the horizontal and vertical reinforcing bar, simultaneously firmly fix locking cover and reinforcing bar, AB glue outwards flow along the gap in the locking cover, enter into the gap between the concrete, AB glue solidifies and accomplishes filling to the gap, also make locking cover and reinforcing bar simultaneously, the locking cover is more firm with the concrete around it, fix between concrete and the reinforcing bar, the anti-load capacity of shearing force has been promoted.

Further, step 2.1 is further included between S2 and S3: supporting steel bars with fixing function are respectively arranged at two sides of the steel bar framework

The beneficial effects are that: the number of the steel bars in the shear wall body is increased, the load resistance is improved, meanwhile, the short steel bars play a role in fixing the steel bar framework, and the displacement of the steel bar framework in the concrete pouring process is reduced.

Further, the curing described in S6 includes: spraying water to the concrete wall at normal temperature, and keeping the wall body not to stick to the mould, drop corners and crack when the mould is removed.

Further, the curing time is 7-10 days, and the strength of the concrete when the mold is removed is at least 4MPa.

Further, before winter construction, the steel bars are preheated, and the stirring time of the concrete before concrete pouring is increased to be 1.5-2 times of the standard value.

The beneficial effects are that: the problems of premature or too late solidification caused by uneven stirring of ice residues and concrete on low-temperature steel bars in winter are prevented, and the bonding between the concrete and the steel bars is improved.

Further, the first air bag and the second air bag are respectively provided with a polyol solution and a polycyanate solution in a sealing manner.

The beneficial effects are that: and filling gaps between the locking sleeve and the steel bars, and mixing the polyol solution and the polycyanate ester solution to form a liquid polyurethane material when the air bags are broken, so that the high polymer core material of the shear connector is formed after hardening.

Furthermore, the template adopts a metal template, and the mold release agent is uniformly sprayed on the inner surface of the metal template before construction.

The beneficial effects are that: the die plate is convenient to demold, and the influence of the die plate on the smoothness of the shear wall surface during demolding is reduced.

Drawings

FIG. 1 is a step diagram of an embodiment of a method for constructing a shear wall for preventing displacement of steel bars;

FIG. 2 is a three-dimensional block diagram of the installation of a locking sleeve;

FIG. 3 is a schematic view of a longitudinal transverse locking ring;

fig. 4 is a schematic view of the installation of the locking sleeve and the steel bar;

FIG. 5 is a schematic view of the installation of the longitudinal/transverse locking ring hollow cavity and the air bag;

FIG. 6 is a schematic perspective view of a first airbag and a second airbag;

FIG. 7 is an enlarged schematic view of FIG. 6 at A;

FIG. 8 is a schematic view of the installation of the snap-fit pin at B in FIG. 2;

fig. 9 is a schematic diagram of formwork installation in a second embodiment of a construction method for preventing displacement of a shear wall steel bar.

Detailed Description

The following is a further detailed description of the embodiments:

the labels in the drawings of this specification include: longitudinal locking ring 1, transverse locking ring 2, cavity 3, first gasbag 4, opening 41, second gasbag 5, puncture needle 6, buckle bolt 7, template 8, horizontal extension 81, vertical pole 82, vertical reinforcing bar 9, concrete wall 99.

An embodiment is shown in fig. 1, and the construction method for preventing the shear wall steel bar from displacement comprises the following steps:

s1: preparing materials, namely processing the steel bars into standard lengths of longitudinal steel bars and transverse steel bars according to a planning drawing;

s2: building a reinforcement cage, and welding the positions of reinforcement joints; step 2.1: supporting steel bars with fixing function are respectively arranged at two sides of the steel bar framework

S3: installing a locking sleeve at the connection position of the longitudinal steel bars and the transverse steel bars; as shown in fig. 2-3, the locking sleeve comprises a longitudinal locking ring 1 and a transverse locking ring 2, the longitudinal locking ring 1 and the transverse locking ring 2 are respectively used for fixing a longitudinal steel bar and a transverse steel bar at the connection positions of the transverse steel bar and the longitudinal steel bar, the steel bar locking effect diagram is shown in fig. 4, the longitudinal locking ring 1 and the transverse locking ring 2 are connected through a buckling bolt 7, after the longitudinal locking ring 1 and the transverse locking ring 2 are folded, mounting holes on wing plates beside are aligned, the heads of the buckling bolts 7 are made of rubber materials, and an installer presses the buckling bolts into the mounting holes by hand, as shown in fig. 8. Forming fixation, wherein the directions of the buckling bolts 7 in the adjacent relevant mounting holes are set to be opposite directions in order to make the mounting firmer; the inner walls of the longitudinal locking ring 1 and the transverse locking ring 2 are respectively provided with a cavity 3, and buffer materials are arranged in the cavities 3; as shown in fig. 5-7, a first air bag 4 is arranged in the cavity 3 of the longitudinal locking ring 1, a second air bag 5 is arranged in the cavity 3 of the transverse locking ring 2, working medium and glue A are respectively and hermetically stored in the first air bag 4, and working medium and glue B are respectively and hermetically stored in the second air bag 5. The first air bag 4 and the second air bag 5 are respectively provided with a polyol solution and a polycyanate solution in a sealing manner. The concrete pouring is finished, a large amount of heat is generated during hardening, the first air bag 4 and the second air bag 5 which are arranged in the cavity 3 in the locking sleeve are heated, working mediums in the first air bag 5 and the second air bag 5 expand when being heated, are contacted with the puncture needle 6 fixed below the first air bag and the second air bag, the air bags are burst, liquid in the air bags flows out from the expansion openings and is contacted with the reinforcing steel bars and concrete near the reinforcing steel bars, at the moment, the adhesive A and the adhesive B in the two air bags are fused to form the adhesive AB glue with extremely high viscosity, the transverse and vertical reinforcing steel bars 9 are adhered and fixed, the locking sleeve and the reinforcing steel bars are firmly fixed, the adhesive AB glue flows out along gaps in the locking sleeve and enters gaps between the concrete, the adhesive AB glue is solidified and fills the gaps, and simultaneously the locking sleeve and the reinforcing steel bars are fixed with the surrounding concrete, and the fixing between the concrete and the reinforcing steel bars is firmer, and the shearing force load resistance is improved. The working medium is one of 4-methyl-2-pentene (cis) (boiling point 58.1 ℃), 1, 2-dichloroethylene (cis) (boiling point 60.2 ℃) or beta-4-aminobenzoyl ethylenediamine (boiling point 59-60 ℃), the scheme selects 4-methyl-2-pentene (cis), which can absorb heat when concrete is solidified, then the liquid state is changed into the gas state, so that the gas bag expands, a plurality of cavities 3 are pushed to move towards the puncture needle 6 and complete the rupture, and substances in the cavities 3 are mixed. The air bag finally breaks in the storage expansion process, gas in the air bag is diffused in the concrete along with the air bag, and the space of the original air bag is also re-entered from the gap by the concrete and occupied, so that the concrete exists on the inner side and the outer side of the two locking sleeves, and the fixing efficiency is higher.

When the air bag is broken, the polyol solution and the polycyanate ester solution are mixed to form a liquid polyurethane material, and the liquid polyurethane material is hardened to form the high polymer core material of the shear connector. After the AB glue and the liquid polyurethane material are hardened, the AB glue and the liquid polyurethane material are integrated with the concrete shear wall, so that the probability of the occurrence of the displacement of the steel bars of the shear wall is reduced, and the load resistance of the shear wall is improved.

S4: building a template 8 and pouring concrete; the template 8 is a metal template 8, and the mold release agent is uniformly sprayed on the inner surface of the metal template 8 before the construction;

s5: extending the vibrating rod into the concrete for vibrating; the plug-in vibrator is selected, the moving distance of the vibrator is not more than 1.5 times of the action radius of the vibrator, and is generally less than 50cm, and constructional columns on two sides of a door opening need to be vibrated tightly, so that vibration leakage cannot be caused. The duration of each vibration point is required to ensure that the surface presents a slurry and no longer sinks.

S6: curing the shear wall and removing the template 8; the maintenance comprises the following steps: the concrete wall 99 is sprayed with water at normal temperature, and the wall body is not stuck, angle and crack when the form is removed. The curing time is 8 days, and the strength of the concrete is at least 4MPa when the mould is removed. Before winter construction, the steel bars are preheated, and the stirring time of the concrete before concrete pouring is increased to be 1.5 times of the standard value.

Example two

The second embodiment is different from the first embodiment in that: in the step S2, a vertical rod and a transverse support plate 81 are firstly built, then a reinforcement cage is built, in the step S4, a template 8 is built, and concrete is poured in a space formed by the upper part of the transverse support plate 81 and the template 8; one end of the vertical support rod 82 is fixed above the concrete wall 99 positioned below the vertical support rod as shown in 9, and the other end is fixedly connected with the lower end of the transverse support plate 81; the lower end of the template 8 is fixed with the concrete wall 99 below, grooves are formed in two sides of the transverse support plate 81, the template 8 is provided with convex blocks, and the convex blocks are matched with the grooves, so that the template 8 and the transverse support plate 81 can be locked up and down and front and back in a displacement manner and cannot move.

After the concrete above the horizontal support plate 81 is poured and formed, the left and right templates 8 are removed, and the method further comprises the step S7: according to the state of the steel bars between the transverse support plate 81 and the concrete wall 99 below, whether the steel bars deviate or not is checked, if the steel bars deviate, the whole correction is carried out on the wall body above the transverse support plate 81, then concrete is poured into the space between the transverse support plate 81 and the concrete below, if the steel bars do not deviate, the concrete is directly poured into the space between the transverse support plate 81 and the concrete below, so that the concrete wall 99 above the transverse support plate 81 and the concrete wall 99 below are combined into a whole, and the pouring method comprises the following steps: through a concrete pouring pipeline with proper size (not exceeding the minimum distance between the vertical support rods and the steel bars), the concrete pouring pipeline stretches into the center of the space between the transverse support plates 81 and the concrete wall 99 below from the side surface, the middle part is poured outwards, and when pouring, one side is fixed by a template, so that the poured concrete is prevented from leaking from the side; and fixing the corrected upper concrete wall body, and canceling the fixation after the concrete in the space is poured.

The beneficial effect of this scheme: before the reinforcement cage is built, the vertical reinforcement is fixed in the concrete wall 99 below, so the horizontal support plate 81 is arranged, the vertical reinforcement 9 passes through the hole according to the position of the vertical reinforcement 9, namely, the vertical reinforcement is straightened once, the vertical rod is convenient to fix with the horizontal reinforcement at the later stage, the vertical rod is arranged below the horizontal support plate and mainly plays two roles, firstly, the horizontal support plate 81 is used for supporting the horizontal support plate 81 when concrete is poured above the horizontal support plate 81, when the space between the horizontal support plate 81 and the concrete wall below is used as a compensation area for inclination of the reinforcement, after the reinforcement of the concrete wall 99 poured above is set, the whole deviation correction can be carried out through the concrete wall 99 above, and then the space below the horizontal support plate 81 is filled with concrete, so that the concrete wall 99 above and the concrete wall 99 below are integrated. The problem that after concrete is solidified, correction cannot be carried out on offset reinforcing steel bars is solved, and because the whole pouring of the prior art is carried out, when the reinforcing steel bars are offset, if the concrete structure is damaged by forced correction, the contact position of the reinforcing steel bars and the concrete is loosened, and the loading capacity of a wall body is affected.

The foregoing is merely an embodiment of the present invention, the present invention is not limited to the field of this embodiment, and the specific structures and features well known in the schemes are not described in any way herein, so that those skilled in the art will know all the prior art in the field before the application date or priority date, and will have the capability of applying the conventional experimental means before the date, and those skilled in the art may, in light of the teaching of this application, complete and implement this scheme in combination with their own capabilities, and some typical known structures or known methods should not be an obstacle for those skilled in the art to practice this application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. The construction method for preventing the shear wall steel bars from displacement is characterized by comprising the following steps of:

s1: preparing materials, namely processing the steel bars into standard lengths of longitudinal steel bars and transverse steel bars according to a planning drawing;

s2: building a reinforcement cage, and welding the positions of reinforcement joints;

s3: installing a locking sleeve at the connection position of the longitudinal steel bars and the transverse steel bars;

s4: building a template and pouring concrete;

s5: extending the vibrating rod into the concrete for vibrating;

s6: maintaining the shear wall and removing the template;

the locking sleeve in the S3 comprises a longitudinal locking ring and a transverse locking ring, wherein the longitudinal locking ring and the transverse locking ring are respectively used for fixing the longitudinal steel bars and the transverse steel bars at the connection positions of the transverse steel bars and the longitudinal steel bars, and the longitudinal locking ring is detachably connected with the transverse locking ring; the inner walls of the longitudinal locking ring and the transverse locking ring are respectively provided with a cavity, and buffer materials are arranged in the cavities; the cavity of the longitudinal locking ring is internally provided with a first air bag, the cavity of the transverse locking ring is internally provided with a second air bag, a plurality of closed cavities are partitioned in the first air bag and the second air bag, working medium and glue A are respectively and hermetically stored in the cavities in the first air bag, working medium and glue B are respectively and hermetically stored in the cavities in the second air bag, the closed cavities filled with the working medium are used for extruding and mixing the glue A and the glue B when being heated, and the boiling point temperature of the working medium is 50-70 ℃.

2. The construction method for preventing displacement of the shear wall steel bar according to claim 1, wherein the construction method comprises the following steps: the step 2.1 is that between S2 and S3: supporting steel bars with a fixing function are respectively arranged on two sides of the steel bar framework.

3. The construction method for preventing displacement of the shear wall steel bar according to claim 1, wherein the construction method comprises the following steps: the curing described in S6 includes: spraying water to the concrete wall at normal temperature, and keeping the wall body not to stick to the mould, drop corners and crack when the mould is removed.

4. The construction method for preventing displacement of the shear wall steel bar according to claim 3, wherein the construction method comprises the following steps: the curing time is 7-10 days.

5. The construction method for preventing displacement of the shear wall steel bar according to claim 4, wherein the construction method comprises the following steps: before winter construction, the steel bars are preheated, and the stirring time of the concrete before concrete pouring is increased to 1.5-2 times of the standard stirring time.

6. The construction method for preventing displacement of the shear wall steel bar according to claim 1, wherein the construction method comprises the following steps: the other airtight cavity in the first air bag is also provided with a polyol solution, and the other airtight cavity in the second air bag is also provided with a polycyanate solution.

7. The construction method for preventing displacement of the shear wall steel bar according to claim 1, wherein the construction method comprises the following steps: the template adopts a metal template, and the mold release agent is uniformly sprayed on the inner surface of the metal template before construction.

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